Xylophanes hannemanni is a moth of the family Sphingidae. It is known from Mexico, Guatemala, Nicaragua, Costa Rica and Panama and further south through Ecuador to Peru and Bolivia. The wingspan is 68–83 mm. It is similar to Xylophanes germen, but the outer margin of the forewing is smooth (except for some specimens from Peru and Bolivia, in which the outer margin may be slightly crenulate) and somewhat concave. There are probably at least three generations per year. Adults have been recorded year round in Costa Rica.